Water Pump: Testing and Inspection

On-vehicle inspection

1. Engine water pump ASSY check
(1) Make sure that there is no bearing noise and drag.

NOTE:
If noise or drag is noted, replace the engine water pump ASSY.

(2) Make sure that the water pump pulley has no fault.
(3) Check the impeller for damage or abnormal deformation.

NOTE:
If the impeller is scratched or abnormally deformed, replace the engine water pump ASSY.